Warping creel thread stop



May 21; 1935. A. BRUENN 2,002,137

WARPING CREEL THREAD STOP Filed Feb.- 2, 1933 Patented May 21, 1935 UNITED STATES PATENT OFFICE 4 Claims.

My invention relates to a Warping creel which makes it possible to use any number of spools in making a warp. It isa'warping creel with automatic stop so arranged that the spool or supply and the take-up upon a warp beam or warp mill or any other means of delivery which upon breakage of a thread will stop immediately and the operation of stopping the machinery will at the same time hold all threads taut, not allowing of the slackening of any of the threads. A further object of my invention is to perform the operation with as few mechanical parts as necessary.

In the drawing forming a part of this specification, and in which like symbols of reference represent corresponding parts in the several views:-

Figure 1 is a side view of my invention; Figure 2 is a side view of one of the spools; and, Figure 3 is a sectional View of the spool, on line 3-3 of Figure 2. i

In the drawing the numeral I represents the creel of the device; 2 the spools of the same; and 3 the thread from the same. beam; 5 the brake to operate on the same; 5 the gears or beam drive; and l is a glass rod over which the thread runs. 8 is the reed which keeps the thread properly spaced; and 9 is the insulation around the spindle upon which the spool revolves. 9a is the spindle. The thread which comes from the spools 2 runs over the glass rod 1, through the reed 8, and through the drop wire or circuit closer I8 onto the beam 4. In the operation of my device-the current enters from the power line over the wire l0 where it passes around the magnet II of the relay, and thence to the starting rheostat l2, which is connected to the motor l3 by the usual conductors I4. The rheostat I2 is provided with the usual holding magnets l5. Conductors [6 lead to contacts I? which are bridged. Upon the breaking of any thread in operation, the bridge piece l8 drops on the contact ll. The arrangement of the wire I6 is such that when the contacts I! are bridged the magnets I5 are short circuited, so that the rheostat l2 moves to ofi position by the deenergization of these magnets, with the result that current is cut-off of the motor and of the magnet i l Then the movable contact IQ of the relay is closed by the spring 28 on the fixed contact 2| of the relay. This shuts the D. C. current circuit here shown as coming from battery 22 or other supply. This current through its wiring connections 23 energizes the brake magnet 24 and the individual brake magnets 25 for the spools. The magnet 24 acts to brake the motor and immediately stops the same, while the magnet 25, acting on the shoes 26 of the individual spools stops the motion of these spools.

The numeral 28 represents a switch in the D. C.

4 is the take-up line, which when opened,.after the machine is stopped allows one to remove the spools from the creel. These switches may be inserted in the wires of the D. 0. line wherever they may be most convenient,

Having now fully described my invention, what I claim as new, and desire to secure by Letters Patent, is':-

1. An automatic stopping mechanism for warping machines, comprising creel spools, a winding beam, separate eleotro-magnetic brakes for each spool and for the beam, a bridge supported on each thread being wound under tension from the creel spools onto the beam, a normally closed electric circuit, anormally open magnetizing circuit connected to the electro-magnetic brakes, short-circuiting terminals connected across the closed circuit and disposed adjacent to the bridge, whereby, when a bridge is released by the breaking of a thread, the short-circuiting terminals are bridged, the normally closed electric circuit is opened and the magnetizing circuit is closed to apply the brakes to the spools and the beam.

2. An automatic stop motion for warping machines, comprising creel spools, individual electromagnetically actuated brakes for the same, conductors leading to the electro-magnetic brakes, a bridge supported by the thread being warped, and conductors adjacent the bridge and adapted to be bridged upon the breaking of a thread and create a short circuit which induces a stoppage of the machine and admits an electric current to the electro-magnets and stops the spools and holds each individual thread taut.

3. An automatic stop motion for warping machines, comprising electro-magnets, creel spools equipped with metal to be attracted by the electromagnets, a beam driven by an electric motor, an electro-magnetic brake for the beam, conductors leading to the electric motor, a bridge supported by the thread when taut, conductors adjacent to the bridge and adapted when the thread breaks to bridge the conductors and actuate the electromagnets to apply the brakes to the beam and:

spools and hold each individual thread taut.

4. An automatic stop motion for warping machines, comprising creel spools having magnetizable metal brake magnets attached to the same, electro-magnets adjacent to the magnetizable metal magnet of each spool, a beam, an electromagnetic brake for the beam, an electric motor, conductors connecting the electro-magnets, motor, and brake, a bridge supported by the thread, and a relay circuit adapted to be closed by the bridge upon the slackening or breaking of a thread, and actuate the brake and electro-magnets to stop the beam and spools.

ALEXANDER BRUENN. 

